#linuxcnc | Logs for 2012-03-16

[00:00:07] <Jymmm> SolarNRG: Cheapest you can get away from
[00:00:11] <Jymmm> s/from/with/
[00:00:35] <Jymmm> allthread and 2x4's
[00:01:06] <SolarNRG> I've got some allthread
[00:01:23] <SolarNRG> But I was told if there are too many turns per inch it'll be slow as hell
[00:01:29] <SolarNRG> Hence why acme thread is used
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[00:01:45] <JustinXJS> Yes, start there, that is what I started with, but ended up with ballscrews and thk linear rails, it was a good learning experience
[00:01:57] <ssi> allthread is awful... acme screw is cheap enough
[00:02:10] <Jymmm> ssi: but the nuts aren't
[00:02:16] <ssi> make your own nuts out of delrin
[00:02:20] <ssi> that's how I built my first machine
[00:02:25] <Jymmm> delrin isn't cheap either
[00:02:27] <SolarNRG> what is delrin?
[00:02:32] <Jymmm> plastic
[00:02:33] <JustinXJS> or you can buy the delrin nuts on ebay, for fairly cheap
[00:02:36] <ssi> high-weight plastic
[00:02:43] <ssi> and delrin is plenty cheap enough
[00:03:05] <SolarNRG> acme thread and delrin nuts
[00:03:21] <ssi> what sort of machine do you intend to build?
[00:03:26] <SolarNRG> how do I attach the delrin nuts to my rail bearings?
[00:03:34] <SolarNRG> One I can mill ceramic casts with
[00:03:43] <SolarNRG> Then pour molten bean cans into
[00:03:47] <Jymmm> Build the ghettoest one you can for as cheap as you can. It'll be an eye opening experience, then you can plan/build the rEAL ting.
[00:03:51] <ssi> molten bean cans, eh
[00:04:06] <SolarNRG> that i melt in a microwave
[00:04:13] <ssi> hahahaha
[00:04:18] <ssi> I like your style
[00:04:28] <SolarNRG> Here's a video of my attempt
[00:04:29] <SolarNRG> http://www.youtube.com/watch?v=VSKl1konZ0U
[00:05:14] * CareBear\ holds breath for rickroll
[00:05:22] <SolarNRG> No it is actuallly my video
[00:05:25] <ssi> heheh
[00:05:29] <ssi> it is indeed
[00:05:34] <ssi> but it looks like a TERRIBLE idea :)
[00:06:36] <ssi> "run like fuck"
[00:06:46] <SolarNRG> Yeah safety first
[00:07:15] <Jymmm> You coulda just plugged n the ext cord as the plug =)
[00:07:22] <Jymmm> s/as/at/
[00:08:27] <Thetawaves> hahaha
[00:08:28] <JustinXJS> that is funny, a friend and I did that a few years ago
[00:08:58] <SolarNRG> Thank you
[00:08:59] * Jymmm waits for a kid to walk thru the back yard
[00:10:31] <Jymmm> I like how the microwaves is aimed at the door you're behind "protecting you"!
[00:10:36] <Jymmm> -s
[00:10:46] <CareBear\> can't see the show otherwise
[00:10:58] <SolarNRG> its for safety
[00:11:05] <CareBear\> entertainment first, safety second
[00:11:07] * flyback smacks CareBear\ around
[00:11:10] <ssi> there's a whole lot of nothing happening
[00:11:17] <SolarNRG> that;s the point
[00:11:20] <SolarNRG> no sparks!
[00:11:26] <flyback> why don't you just make a induction furnace
[00:11:27] <flyback> stupid canuck
[00:11:27] <ssi> I expected more from this 15 minutes of my life!
[00:11:29] <flyback> stupid canuck
[00:11:36] <Jymmm> SolarNRG: aiming the oven at the door is for safety?
[00:11:41] <SolarNRG> yeah
[00:11:45] <SolarNRG> so i can see
[00:11:58] <SolarNRG> but the glass of the door prevents a microwave blowing up in my face
[00:12:06] <flyback> Solar
[00:12:08] <Jymmm> Is that like aiming the cannon at the door for safety too?
[00:12:09] <CareBear\> SolarNRG : another option would be to mount a cheap camera very close to the oven
[00:12:13] <flyback> you can make a gas furnace cheap too
[00:12:15] <flyback> DO NOT
[00:12:22] <flyback> use a hair dryer for the turbocharger
[00:12:33] <flyback> they either have a gay little toy dc motor with metal strips for brushes
[00:12:46] <flyback> or if you buy professional hair dryers like I do which I still manage to burn out in a year $50
[00:12:55] <flyback> they have larger brushes you could replace if you can find them
[00:13:00] <ssi> get a bbq fan
[00:13:02] <ssi> like a pit viper or something
[00:13:03] <flyback> they use a universal motor that was designed with many uses
[00:13:06] <Jymmm> leaf blower
[00:13:09] <SolarNRG> its sorted
[00:13:09] <flyback> so some of those uses would want a brush change
[00:13:14] <SolarNRG> ive bought a crucible
[00:13:23] <flyback> but a normal hair dryer is not going to last long
[00:13:42] <ssi> anyone a wizard at diagnosing 3phase motor problems?
[00:13:45] <SolarNRG> I'm trying again next weekend
[00:13:51] <flyback> i'm on my 5th here in 6 yrs
[00:14:03] <flyback> sadly I could have fixed almost all of them but ran out of time
[00:14:12] <SolarNRG> Anyway, thanks for your help guys, I'm off 2 bed
[00:14:12] <flyback> this was before I was on ebay though and could look for brushes
[00:14:17] <SolarNRG> Thank you all and good night
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[00:14:35] <flyback> I kill them drying out pc parts and circuit boards
[00:14:39] <flyback> not drying my hair :P
[00:15:06] * Jymmm wants his 14 minutes back damnit!
[00:15:45] <ssi> Jymmm: SRSLY
[00:17:28] <Thetawaves> flyback, what about a 4" duct fan
[00:17:44] <Thetawaves> i've got a 12v 4" duct fan sitting right here
[00:17:54] <Thetawaves> i was thinking it would be too powerful
[00:17:56] * Tom_itx gives Jymmm a time machine
[00:18:07] <JustinXJS> I am with Jymmm, leaf blower works really well
[00:18:14] <Jymmm> Tom_itx: Y Flux capacitor included?
[00:18:14] <flyback> I bet my furnace draft blower I saved from the old furnace would be awesome for this
[00:18:17] <flyback> but I use it as a sleep machine
[00:18:26] <flyback> and the bearings are close to eol it's almost 20 yrs old
[00:18:31] <flyback> I dunno what I am going to do :/
[00:18:33] <Tom_itx> no, it was removed for safety in shipping
[00:18:38] <flyback> I think I can get the top off and change that one
[00:18:50] <flyback> but they sealed the plastic housing around the centrif blower for life
[00:19:34] <Jymmm> ssi: I'm still working on the lamp shade formula =)
[00:19:43] <ssi> Jymmm: heheh get it done
[00:19:50] <ssi> my coolant pump is being an ass
[00:20:01] <Thetawaves> i just need to get an inline gasoline pump to get a gasoline fired burner made :D
[00:20:03] <ssi> it won't run unless you give it a nudge as you're bringing the frequency up
[00:20:35] <Jymmm> ssi: bring it up to 90%, then back it off
[00:20:44] <ssi> ?
[00:20:49] <flyback> ssi sounds like a bad cap
[00:20:55] <flyback> or your vfd profile is CANUCKED
[00:21:17] <ssi> don't think it has caps!
[00:21:20] <ssi> it's 3ph
[00:21:24] <flyback> ah yeah
[00:21:31] <flyback> your VFD profile sucks ass then
[00:21:34] <flyback> see if you can change it
[00:21:42] <ssi> I've changed it every way I can think of
[00:21:47] <ssi> I think it probably has an open phase
[00:21:48] <flyback> mabye a high freq blitz for 1/10 of a second just to get it turning
[00:21:58] <flyback> then ick
[00:22:03] <flyback> i'd get the dmm now and start checking
[00:22:09] <flyback> before it turns into more problems
[00:22:11] <ssi> yea that's my next step
[00:22:31] <ssi> I'm just not sure if I can just measure from line to line
[00:22:34] <flyback> it might be savable if it doesn't do a statue of liberty torch impersination and warp the rotor etc
[00:22:39] <ssi> or if I need to break the coils apart and measure them independently
[00:22:45] <flyback> feel free to ask in ##electronics
[00:25:03] <JustinXJS> If it is a 3 wire motor you can test for a bad phase, just measure between all 3 combinations of wires (AB, AC, BC)
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[06:59:57] <Jymmm> Can anyone suggest a material that would be to make battery contacts from?
[07:00:11] <Jymmm> Can anyone suggest a material that would be good to make battery contacts from?
[07:01:32] <archivist> car battery, D cell, watch cell....!
[07:03:47] <elmo40> copper
[07:03:54] <Jymmm> I got an aftermarket drop-in charger for my radio. It uses (what looks like) chrome plated wire for the contacts, but they barely make contact with the battery.
[07:04:29] <Jymmm> so, I need to get some of this chromed wire and reshape the contacts for a better fit.
[07:05:44] <archivist> battery chemistry defines contact material
[07:06:37] <Jymmm> This is in the drop-in charger, not the batteries
[07:07:27] <elmo40> like a AAA cell battery charger?
[07:07:30] <elmo40> or a car battery
[07:08:56] <Jymmm> No, a drop-in charger... http://www.expert-battery.com/new-desktop-rapid-charger-for-kenwood-thd7a-pb39-battery-p-1077.html
[07:09:35] <archivist> Jymmm, was it too hard to say Ni-CD and Ni-MH
[07:10:29] <elmo40> wtf is a 'drop in charger'?
[07:10:33] <elmo40> that means nothing to me
[07:10:48] <archivist> it has to be a spring and resistant to Ni-CD and Ni-MH chemicals
[07:10:53] <elmo40> they don't even describe it as a drop-in charger...
[07:11:00] <elmo40> why make up your own terminology ;)
[07:11:20] <archivist> which does not describe the problem either
[07:12:02] <elmo40> archivist: unless the metals leak I see no reason to make the material resistant to them.
[07:12:22] <Jymmm> elmo40: Let's see, google says 55,000,000 results https://www.google.com/search?q=drop+in+charger
[07:12:38] <archivist> elmo40, the batteries leak not metals!
[07:13:44] <elmo40> then go with stainless. 3xx series.
[07:14:02] <archivist> I would leave well alone
[07:17:12] <elmo40> if you want impervious to anything... use titanium ;)
[07:17:35] <archivist> the reason stainless is stainless is the chrome content which creates an oxide barrier, probably an insulator,
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[07:18:18] <elmo40> then that means it will react with chlorine. I doubt these batteries contain chlorine
[07:18:19] <archivist> and why those cheap meter probes dont make a good contact
[07:18:29] <elmo40> according to wiki its oxyhydroxide.
[07:18:36] <Jymmm> So, where can I find 22ga SS wire from locally usually?
[07:19:13] <Jymmm> These are kinda springy fwiw
[07:19:19] <elmo40> ask for a bit of welding wire
[07:20:00] <elmo40> 20 AWG is about 0.035" wire.
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[07:20:32] <elmo40> they make solid MIG stainless wire. make sure it doesn't have flux ;)
[07:20:39] <Jymmm> k
[07:21:10] <elmo40> 316 SS is what I recommend.
[07:22:20] <elmo40> but 304 will suffice. gonna be tough connecting it all together, though.
[07:23:19] <archivist> bugger to solder
[07:24:37] <Jymmm> I should be ok there, they use a screw to mount the terminals in the enclosure
[07:25:03] <Jymmm> I just have to shape the wire properly
[07:25:25] <Jymmm> but anythign has got to be better than what they have
[07:26:31] <Jymmm> It barely makes contact now, need to move up like 3mm
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[08:02:06] <Loetmichel> mornin'
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[08:07:34] <DJ9DJ> moin
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[11:48:17] <SolarNRG> How do I build a CNC machine?
[11:48:34] <Loetmichel> SolarNRG: short: just do it
[11:48:40] <DJ9DJ> haha :D
[11:48:50] <Tom_itx> if you don't know, maybe you should buy one?
[11:49:01] <Loetmichel> long: read a lot, think a lot (twice), order parts, buildt
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[11:49:55] <SolarNRG> But I've already bought a dremel and some stepper motors
[11:50:15] <Tom_itx> we will chalk that up to learning curve
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[11:53:20] <SolarNRG> So they are a waste then
[11:53:47] <Tom_itx> no, they look like good steppers
[11:53:51] <DJ9DJ> hmm, I would say it depends on your skills
[11:54:13] <SolarNRG> I can make a dish follow the sun
[11:54:26] <SolarNRG> But CNC seems mainly metal work
[11:54:44] <SolarNRG> I've been advised to use aluminium c-slot for construction because it is flat
[11:54:45] <DJ9DJ> I also wanted to have a cnc milling machine and Loetmichel told me "just build one on your own" and I did...
[11:54:51] <DJ9DJ> so thats not impossible ;)
[11:55:23] <SolarNRG> OK, I've bought some steppers, what's the next step?
[11:55:29] <DJ9DJ> and it also depends on your requirements
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[11:55:35] <Tom_itx> it's kinda up to you to decide what you need / want
[11:55:56] <DJ9DJ> a cnc milling machine for steel is a little more difficult compared just doing some wood-work
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[11:57:26] <SolarNRG> why?
[11:57:45] <Tom_itx> you need alot more rigid machine to machine steel than you do wood
[11:58:03] <Loetmichel> or a LOT of time at hand ;-)
[11:58:07] <DJ9DJ> because for steel there are much higher forces and you need a better machine, more stiff frame
[11:58:23] <SolarNRG> Would c-slot be suitable?
[11:58:29] <Loetmichel> for steel?
[11:58:31] <Loetmichel> NO
[11:58:33] <SolarNRG> yeah
[11:58:50] <Loetmichel> not if you want to be done bevore the judgement day
[11:58:55] <DJ9DJ> hrhr
[11:59:01] <Loetmichel> -v+f
[12:00:36] <Loetmichel> SolarNRG: even a small CNC mill made of aluminium CAN do steel...
[12:00:51] <DJ9DJ> one atomic layer each pass :D
[12:00:57] <Loetmichel> ... but onla 0.05mm slices, and panifully slow
[12:01:04] <Loetmichel> so the forces stay low
[12:01:37] <Loetmichel> its more of grinding dthe steel to dust than actual milling ;-)
[12:01:52] <SolarNRG> Then you want a diamond coated bit on high speed then
[12:02:12] <Loetmichel> yes
[12:02:58] <DJ9DJ> hmm, but would one use a dremel for steel?
[12:03:03] <SolarNRG> What's the score if I want to mill ceramics?
[12:03:33] <Loetmichel> dh: why would one use a dremel fpr a milling machine anywaay?
[12:03:46] <DJ9DJ> hmm, me? nope :D
[12:03:49] <SolarNRG> BEcause I bought it and I'm going along with whatever I've got
[12:03:51] <Loetmichel> spl: the dremel is a usable hand tool
[12:04:02] <Loetmichel> on a milling machine it is misplaced
[12:04:11] <SolarNRG> But its got a mount that I can bolt onto a bit of chopping board
[12:04:21] <SolarNRG> Maybe some MDF
[12:04:52] <Loetmichel> if nothing else for the long distance from collet to fiurst bearing and the low quality of the collet holder, runout, even bent.
[12:04:58] <Tom_itx> that doesn't make it a spindle
[12:05:02] <Tom_itx> it's still a dremel
[12:05:19] <Loetmichel> right
[12:05:30] <SolarNRG> Why do dremel sell the mount then?
[12:05:54] <Tom_itx> maybe they like selling dremels with attachments
[12:05:57] <Loetmichel> the proxxon IB/e is usable as a spindle for low force work. but even this eats head bearings like crackers
[12:06:19] <Tom_itx> and the attachment *is* plastic
[12:06:34] <Loetmichel> SolarNRG: for wood routing it is usable, but for high precision work it is absolutlely UNusable.
[12:06:36] <Loetmichel> (dremel)
[12:07:31] <Loetmichel> SolarNRG: i have build about 8 "cnc routers" so far...
[12:07:43] <Loetmichel> and seen a BIT of progress...
[12:08:08] <SolarNRG> Shall I just sell my parts on ebay and forget this whole thing?
[12:08:13] <Loetmichel> from the first one: http://www.cyrom.org/palbum/main.php?g2_itemId=2859
[12:08:50] <Loetmichel> over a one i build for my ex company: http://www.cyrom.org/palbum/main.php?g2_view=core.DownloadItem&g2_itemId=4936&g2_serialNumber=2
[12:09:13] <Loetmichel> to my actual little one: http://www.cyrom.org/palbum/main.php?g2_itemId=12569
[12:10:23] <SolarNRG> I honestly think I've bitten off more than I can chew on this one
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[12:10:46] <Loetmichel> no, but think first what you wand to do with it, read a lot in the according forms and THEN desing something, get repliess to your construction and correct it accordingly, and THEN buy parts and build. will be MUCH cheaper in the end
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[12:10:56] <Loetmichel> and has a steeper learning curve ;-)
[12:11:26] <Loetmichel> <- dinner, BRB
[12:11:32] <SolarNRG> ohok
[12:11:45] <Tom_itx> yeah, don't buy a bunch of parts and try to make them all work together until you're sure they will
[12:11:54] <DJ9DJ> dinner? you mean lunch? ;)
[12:12:05] <Tom_itx> no no, breakfast
[12:12:17] <DJ9DJ> its 13pm here (also at Loetmichels location)
[12:12:33] <DJ9DJ> hmm, 13pm is also a good fail, isn't it? 1pm!
[12:17:45] <elmo40> 8am here ;)
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[12:28:27] <SolarNRG> Maybe I'll stick to using mdf and dremels for now
[12:33:19] <jdhnc> cheaper and learning curve is flatter
[12:34:34] <frysteev_> i just picked up a transformer for my shop this morning woo
[12:34:48] <jdhnc> I need some 3+ conducter bulkhead connectors and things to plug in them. Only carrying .5A. Anyone have something they like for that?
[12:41:53] <SolarNRG> r these any good? http://www.ebay.co.uk/itm/2pcs-SBR16-770mm-Linear-Bearing-Rails-4pcs-SBR16UU-/160577609058?pt=UK_BOI_Metalworking_Milling_Welding_Metalworking_Supplies_ET&hash=item25632bdd62
[12:42:39] <jdhnc> good for milling cast iron engine blocks?
[12:43:16] <SolarNRG> Are these overkill?
[12:43:28] <jdhnc> no
[12:43:38] <jdhnc> they might be big or small, depending on application.
[12:44:00] <jdhnc> but, longer bearing blocks are generally better than shorter ones, but you lose travel
[12:44:00] <awallin> the round ones are a bit cheaper than square linear rails. I guess the square ones have better specs
[12:44:53] <elmo40> higher load capability in square ones
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[12:52:11] <Loetmichel> re*burps*
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[12:54:00] <Loetmichel> SolarNRG: in short: we can suggest anything to you until we kno WHAT you want to do with the mill
[12:54:57] <Loetmichel> tell us things like Budget, maximum movement wanted (3 axis) amterials to be milled and we tell you thats impossible and tell you what in fackt IS doable ;-)
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[13:05:53] <Loetmichel> *grrr*server down....
[13:06:50] <Loetmichel> *wait for reboot* (managed vserver hase sme advantags, even its expensive... one call and the techs get going ;-)
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[13:12:23] <SolarNRG> OK I'm getting a crucible next week where I can melt aluminium cans into a murky ally/alo mix and I want to machine my own casts out of clay to pour the molten ally/alo into
[13:12:34] <SolarNRG> I mean I can shape my own clay casts by hand
[13:12:42] <SolarNRG> But with a machine I could make any part I wanted
[13:13:07] <SolarNRG> Yeah 3 axis
[13:13:32] <SolarNRG> I want to make parts max 50cmx50cm by ?? deep
[13:13:43] <SolarNRG> I guess its as deep as my dremel bit will go
[13:13:56] <SolarNRG> There is a diamond coated end for my dremel which should be suitable for milling clay
[13:14:08] <Loetmichel> SolarNRG; for the last time: toss the dremel.
[13:14:15] <Loetmichel> its no good for a CNC
[13:14:30] <Loetmichel> use it as intended as a hand tool and its ok
[13:14:33] <FinboySlick> SolarNRG: A small gantry setup is probably suitable for you.
[13:14:47] -!- ries has quit [Ping timeout: 246 seconds]
[13:15:09] <SolarNRG> Would a Bosch 1617EVS be better?
[13:15:36] <SolarNRG> How do I make a small gantry?
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[13:16:54] <Loetmichel> -> yes lokks like it would be better
[13:17:05] <Loetmichel> but a bit difficult to mount
[13:17:22] <SolarNRG> What do you recommend?
[13:19:27] <FinboySlick> SolarNRG: The kind of setup I'm suggesting would be a bit like what's at the bottom of this page: http://castboolits.gunloads.com/showthread.php?t=38655
[13:20:37] <SolarNRG> C slot table?
[13:20:48] <SolarNRG> 25mm stainless rals
[13:21:00] <SolarNRG> I've got 25mm cylinder mild steel, can I use them as rails?
[13:21:18] <Loetmichel> freee floating?
[13:21:31] <Loetmichel> no, tahts the worst construction possible
[13:21:38] <Loetmichel> get supported rails at least
[13:21:59] <Loetmichel> like the SR16UU above, but i would reccomend the 20mm type
[13:22:02] <SolarNRG> Would that ebay link of rails be any good?
[13:22:17] <SolarNRG> They're a UK supplier and they'll do me 2 pairs of rails with bearings for 70 quid
[13:22:32] <Loetmichel> ask them for 20mm types
[13:22:37] <Loetmichel> that wpuild be suitable
[13:22:44] <Loetmichel> and 16mm only for Z axis
[13:25:00] <SolarNRG> i c what u mean if theres a floating bar won't it sag in the middle?
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[13:26:23] <Loetmichel> exactly
[13:27:33] <Loetmichel> if my server would reboot now i would have shown you a machine with 1500*1200 madte from wood and the 20mm/16mm rails
[13:27:41] <Loetmichel> exactly this ones
[13:28:35] <SolarNRG> I've got these http://i.imgur.com/nBnTh.jpg
[13:28:48] <SolarNRG> Can I use these as x axis rails?
[13:28:55] <SolarNRG> Its 25mm mild steel bar
[13:29:06] <Loetmichel> (i.e.: the sehost of my Vserver has to reboot, according to the ISP the HDD susystem has thrown the legs up)
[13:29:16] <frysteev_> you CAN, question is SHOULD you :P
[13:29:40] <Loetmichel> and for should i have to say: no
[13:29:41] <SolarNRG> Well a) I've already got them, b) they are reasonably straght and c) they are quite strong!
[13:29:42] <Loetmichel> ;-)
[13:30:05] <Loetmichel> reasonambly straight: measured how?
[13:30:21] <SolarNRG> ruler
[13:34:33] <Loetmichel> harhar
[13:34:40] <frysteev_> SolarNRG: what kind of acuracy do you want your final machine to have?
[13:35:14] <SolarNRG> quite accurate
[13:35:35] <SolarNRG> like accurate enough to make a bicycle gear
[13:35:48] <SolarNRG> that works
[13:36:31] <frysteev_> then you dont wanna skimp
[13:37:11] <SolarNRG> So get good rails then
[13:37:32] <SolarNRG> You've got a CNC machine, if I paid you a bit of cash could you make some of the parts for me?
[13:37:38] <SolarNRG> Or maybe tell me where to go to get them?
[13:39:21] <frysteev_> my little machine i bought from someone who make them casue i know i coudlnt make that kind of acuracy
[13:39:59] <frysteev_> depedning where you are, there is plenty of places that seel parts that are discounted or overstock.
[13:40:21] <frysteev_> im in toronto, and theres always surplus cnc rails and parts i see online
[13:43:23] <SolarNRG> How do I build the shell?
[13:49:11] <SolarNRG> Why are so many CNC driver boards so shite?
[13:50:13] <cradek> because people want to pay very little for them
[13:50:33] <Valen> SolarNRG: use mesa stuff
[13:50:39] <Valen> its good
[13:50:43] <Valen> and cheap
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[13:51:45] <Loetmichel> SolarNRG: shite depends on your reqirements
[13:52:05] <Loetmichel> i have build a few CNC with the cheap TB65*** boards from china
[13:52:16] <SolarNRG> Any good?
[13:52:22] <Loetmichel> and they are still runnung and doing whart they should
[13:52:22] <SolarNRG> Or do they cook quickly?
[13:52:24] <jdhnc> good, or good for the price.
[13:52:41] <Loetmichel> teh cooc VERY easy
[13:53:11] <Valen> some of my firends have used the cheap chinese stepper drivers
[13:53:21] <Valen> then after a while they threw them out and got geckos
[13:53:25] <SolarNRG> I've been recommended teh american made gecko drive
[13:53:32] <Loetmichel> but if one make some adjustments for that: (no maximum votage, stay 5-10V below, no maximum load( stay at 2,5A instead pf 3A, and a new Heatsink they are quite reliable
[13:53:50] <Valen> I still reccomend looking at mesa
[13:54:03] <SolarNRG> Aren't they a london company that make cuts?
[13:54:06] <Loetmichel> the heatink on one was e reasonable annoyment...
[13:54:08] <Valen> I have abused their I/O boards and servo driver board beyond belief
[13:54:24] <Valen> over currenting them by a factor of about 8 ;->
[13:54:29] <Loetmichel> ... grr, server still dowm...
[13:54:33] <Loetmichel> *waiiiiit*
[13:54:34] <Valen> they are still working ;->
[13:54:59] <jdhnc> there are 'good' chinese drivers too, they just aren't cheap
[13:55:01] <Valen> in fact they are probably the most reliable parts of the machine lol
[13:55:03] <SolarNRG> Got a model number?
[13:55:32] <SolarNRG> Also what do you use as a voltage source? Can I use my 12v PC power supply?
[13:55:52] <Valen> not the one thats running your PC at all
[13:56:05] <Valen> and if you do use ATX supplies you need to put a load on the 5v rails
[13:56:16] <Valen> we use a pair of 12V 400W chinese supplies
[13:56:33] <Valen> knocked one out the other day, came good after a hard power cycle
[13:56:39] <Loetmichel> SolarNRG: too small
[13:56:42] <Valen> but thats the first time it died on us
[13:56:56] <Loetmichel> i would look for a 36V 10A minium PSU
[13:57:07] <Valen> those are very hard to find
[13:57:29] <Valen> 12v supplies are easier to come by, and you can connect them in series for more volts
[13:57:43] <SolarNRG> are you telling me these stepper motors I've got need 36v?
[13:57:47] <jdhnc> you can easily find a 24V PSU that you can crank up to 30ish
[13:57:51] <Loetmichel> Valen: only if the gnd isnt connected to the chassis of the psu
[13:58:05] <Valen> they shouldn't be
[13:58:13] <Valen> and they werent
[13:58:26] <Loetmichel> SolarNRG: i am telling you that normal stepper drivers can cope with up to 40V, and every wolt miore on the controllers make the stepoeres faster
[13:58:42] <Loetmichel> i.e.: mitre toque at hight rpm
[13:58:44] <Loetmichel> more
[13:58:55] <Valen> yeah 24v is kinda tha minimum you would want steppers at on a real machine
[13:59:06] <Loetmichel> sorry for mistyping, i seem to have some fingers knotted lately
[13:59:29] <Loetmichel> (must be the ever so slow VNC link i am chatting over)
[13:59:40] <Valen> vnc for irc?
[13:59:50] <Loetmichel> irc client runs on my hiome machine
[13:59:54] <Valen> surely you lol? ;->
[14:00:00] <Valen> dude weak
[14:00:10] <Loetmichel> i am working in a cvompany which makes military computers
[14:00:12] <Loetmichel> ...
[14:00:24] <SolarNRG> This axminster micro mill looks good but it costs like 4-5 grand http://www.axminster.co.uk/proxxon-proxxon-ff-500-cnc-micro-mill-prod801613/?src=froogle
[14:00:27] <Valen> get one of the nifty distributed irc clients ;->
[14:00:32] <SolarNRG> Can I build my own one for a lot less?
[14:00:33] <jdhnc> tunnel via ssh
[14:00:39] <Loetmichel> so i have to tunnel home for ircing ;-)
[14:00:55] <Valen> ssh + screen
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[14:01:13] <Loetmichel> i dont like the console IRISSI
[14:01:28] <Loetmichel> i am used to Mirc and want to go with it as long as possible
[14:01:39] <Valen> there are other command line irc's also how many colours are you using for your vnc?
[14:01:55] <Loetmichel> btw, if i used irissi on my server i wouldnt bne able to chat right now: server is still doewm
[14:02:03] <Loetmichel> 256
[14:02:13] <Valen> pshaw, luxury
[14:02:20] <Valen> you can crank it down to 3
[14:02:37] <Valen> in my day we had green and black and we were LUCKY!
[14:02:43] <Loetmichel> harhar
[14:03:00] <Valen> but yeah, you can wind it down to 3, but things look funky
[14:03:24] <Loetmichel> i started with that, too, got m fist compuer in 796
[14:03:29] <Loetmichel> in '79
[14:04:07] <Valen> lol i wasn't born then
[14:04:15] <DJ9DJ> hrhr
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[14:06:11] <Valen> but yeah SolarNRG take a look at http://www.mesanet.com/ for your electronics
[14:07:11] <Valen> the 5i25 is new and fairly cheap.
[14:07:32] <Valen> but i suggest it might be worth one of the other 5i2 series cards
[14:07:55] -!- Loetmichel has quit [Ping timeout: 264 seconds]
[14:07:59] <Valen> and see how the 7i32 compares to your chinese stuff
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[14:08:46] <jdhnc> speaking of which
[14:09:21] <SolarNRG> r they expensive?
[14:10:11] <jdhnc> they are two axis
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[14:11:30] <skunkworks> #linuxcnc-devel
[14:11:34] <skunkworks> fail
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[14:16:23] <Valen> the mesa stuff
[14:16:31] <Valen> its expensive compared to fanuc
[14:16:34] <Valen> bah
[14:16:41] <Valen> its expensive compared to chinese crap off ebay
[14:16:48] <Valen> its dirt cheap compared to fanuc
[14:16:56] <Valen> but you plug it in and it all just works
[14:17:07] <Valen> and it does hardware step generation
[14:17:14] <Valen> so your computer is less important
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[14:25:53] <skunkworks> mesa stuff is awesome.
[14:26:31] <SolarNRG> how does it intereface with the wires of the stepper motors?
[14:27:38] <pcw> We dont make LinuxCNC compatible step drives, just interface cards
[14:28:32] <pcw> (mainly for people that want more performance than they can get out of a parallel port)
[14:29:19] <SolarNRG> I want my CNC machine to be USB controlled
[14:29:28] <SolarNRG> So I can plug it into my laptop
[14:29:40] <skunkworks> SolarNRG: then you will not be able to use linuxcnc.
[14:29:47] <SolarNRG> Why not?
[14:30:09] <pcw> If you are just starting, one of those 3 axis chinese boards run at a safe voltage is probably an OK starting point
[14:31:43] <pcw> LinuxCNC is the real time controller If you use USB you no longer have real time control/feedback
[14:32:02] <skunkworks> SolarNRG: USB is not realtime enough at this time for machine control. You would have to get a device that offloads motion to hardware. Linuxcnc need to be in realtime control of the hardware.
[14:33:13] <SolarNRG> But my laptop does not have a parallel port
[14:33:44] <skunkworks> laptops are also not usually good for realtime control.
[14:34:48] <skunkworks> You are also going to spend more money on a usb solution and get less control. But if that is what you want - look at Mach and smoothstepper - or usbcnc... There are a few out there.
[14:35:02] <skunkworks> Less control/flexabillity..
[14:35:09] <pcw> If using USB on a laptop is really important LinuxCNC is not a good choice
[14:36:31] <skunkworks> normally people use older pentium 4 computers or they buy the atom based intel boards for <$90 that work well
[14:36:56] <SolarNRG> I have a desktop but its dead
[14:37:09] <SolarNRG> I got ubuntu and vista on that piece of junk
[14:37:11] <cradek> are you in a part of the world that secondhand desktop machines are rare or expensive?
[14:37:35] <CareBear\> USB has no problem sustaining the bandwidth for neccessary data transfer, but the LinuxCNC architecture simply requires a local bus
[14:38:00] <cradek> yes, the issue is latency, not bandwidth
[14:38:02] <CareBear\> USB was never and will never be realtime
[14:38:04] <pcw> Its not bandwidth its latency
[14:38:37] <CareBear\> realtime is a stupid concept anyway
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[14:38:46] <cradek> heh
[14:38:48] <skunkworks> heh
[14:39:07] <pcw> a few hundred Kbytes per second is enough
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[14:39:41] <pcw> (as least at 1 ms servo thread)
[14:39:46] <skunkworks> I would not have it any other way :)
[14:42:38] <pcw> centralized control seems a cleaner architecture but does have its downsides
[14:42:40] <pcw> (finding PCs with good latency mainly )
[14:46:36] <pcw> In any case if you are building a machine from scratch, choosing a PC to drive it
[14:46:38] <pcw> has to be pretty far down the list in terms of time/money relative to the rest of the job
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[14:47:37] * skunkworks hugs linuxcnc
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[14:51:47] <Loetmichel> sorry, had to do some work...
[14:51:53] <jdhnc> work?
[14:51:56] <jdhnc> it's friday
[14:52:00] <Loetmichel> and?
[14:52:17] <Loetmichel> still working (at least for a nother hour and a bit)
[14:53:02] <jdhnc> no
[14:53:06] <Loetmichel> anyone knowsa ho much i have to derate the loadcapacity of a bluewhell if its only mounted with 3 screwa?
[14:53:24] <Loetmichel> ( fourth is dangling in mitadair)
[14:53:26] <Loetmichel> -t+d
[14:53:49] <jdhnc> what's a bluewhell (but I don't know anyway)
[14:54:10] <Loetmichel> blue wheel
[14:54:22] <Loetmichel> tha coasters under Stage equipment boxes
[14:55:40] <Loetmichel> http://www.lautsprecher-technik.de/lenkrolle-guitel-100mm-blue-wheel-mit-bremse-pi-987.html?language=de
[14:55:43] <skunkworks> http://www.youtube.com/watch?v=DS5jOHWw_gA
[14:58:34] <skunkworks> http://www.youtube.com/watch?v=H7Vcd8iSmWM
[14:58:35] <Loetmichel> skunkworks: hrm... linuxcnc for such a simple machine?
[14:58:50] <Loetmichel> wouldnt that be the job of a simple 8bit Atmel AVR?
[14:58:55] <Loetmichel> and a small display?
[15:01:47] <Loetmichel> jdhnc: i have to workk from 0800 'til 1700 monday o fridasy
[15:01:51] <Loetmichel> to friday
[15:01:59] <jdhnc> me too
[15:02:05] <Loetmichel> so its about an hour left today
[15:02:15] <jdhnc> but, 1700 is probably going to occur around 1400 today :)
[15:02:16] <cradek> linuxcnc is less expensive than an avr
[15:02:24] <Loetmichel> (an hour lunch break included)
[15:02:53] <Loetmichel> cradek: IF you happen to have the computer standing around otherwise unemployend
[15:02:59] <Loetmichel> -n
[15:03:01] <cradek> who doesn't!?
[15:03:24] <Loetmichel> i have only 11 working computers at home, and a few notebooks
[15:03:41] <Loetmichel> cant spare one for such a luittle job ;-)
[15:03:42] <jdhnc> we do similarly simple machines with the logic in the drive
[15:03:47] <Loetmichel> little
[15:03:52] <cradek> it makes stringettes!
[15:03:58] <Loetmichel> it will bother itself to deaht
[15:04:02] <Loetmichel> death
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[15:05:22] <Loetmichel> s/bother/bore
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[15:08:40] <Loetmichel> SolarNRG: still there?
[15:09:08] <Loetmichel> this machine is working with the SBR20uu
[15:09:10] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11205
[15:09:32] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11175
[15:10:41] <Loetmichel> its a bit bigger than you want, but just for the ideas to "§borrow: look at it.
[15:10:53] <Loetmichel> and yes, its made from wood
[15:11:37] <Loetmichel> (more or less., thats "siebdruckplatte", plywood pressed together wirh melamin resin instead of f white glue
[15:11:52] <SolarNRG> yeah
[15:11:57] <SolarNRG> ive been calling people in scotland
[15:12:02] <SolarNRG> nobodys got any machine parts spare
[15:12:09] <SolarNRG> they've all been melted
[15:12:13] <Loetmichel> so youre scottisch?=
[15:12:17] <Loetmichel> -s
[15:12:25] <SolarNRG> aye
[15:13:53] * Loetmichel was only one time in scotland, namely in dundee.
[15:14:11] <Loetmichel> ant that was in uniform (navy)
[15:14:20] <Loetmichel> for a weekend
[15:14:23] <SolarNRG> Dundee's lovely
[15:14:46] <Loetmichel> hmmm... bi of a workers city isnt it?
[15:15:02] <Loetmichel> bit
[15:15:45] <Loetmichel> but sure the ppl there can do a decent fistfiht.
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[15:17:14] <Loetmichel> (got in a little trouble after on of our crewmembers was beaten down in a pub... next day nearly the whole crew got to the pub and did som clearing of a few points ;-)
[15:22:40] <SolarNRG> Are reconditioned Fanuc boards any use?
[15:24:57] <SolarNRG> Also I spoke to a guy who does model boats and he uses a KRESS as a mill router and also adivsed me to ditch the dremel
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[15:45:17] <ssi> well, I no longer have a functional GE550 control
[15:45:26] <ssi> https://p.twimg.com/AoFje5ZCQAAKaP3.jpg:large
[15:45:29] <skunkworks> on purpose?
[15:45:31] <ssi> yea
[15:45:38] <skunkworks> cool
[15:45:39] <ssi> but I felt pretty guilty doing it :(
[15:45:43] <skunkworks> heh
[15:46:03] <ssi> it wasn't built anything like modular
[15:46:07] <ssi> I had to cut a LOT of wires to get it out
[15:46:08] <ssi> heheh
[15:50:26] <Loetmichel> kress is ok for a router
[15:50:36] <Loetmichel> most of the cheap Gantry CNC use them
[15:51:07] <Loetmichel> but beware that after about a jear 8h/5d a week run the bearings will be fried
[15:53:08] <Loetmichel> grrr. electronics companys... lagest screw around: M5*40
[15:53:11] <SolarNRG> Is this a good CNC machine to try to build? http://www.youtube.com/watch?v=6ZHCakmXNGk&feature=channel
[15:53:44] <Loetmichel> for the wheels i need M8*60... so i have to go toe the screw dealer on monday morning for 8 screws... (and some nuts...
[15:54:30] <Loetmichel> SolarNRG: looks a bit weak to mie but that can be my imagination
[15:54:52] <Loetmichel> especially the gantry sidewalls
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[16:06:17] <SolarNRG> This one looks VERY easy to make http://www.youtube.com/watch?v=5OnlrcEJiuc
[16:07:24] <Loetmichel> OUCH
[16:07:43] <Loetmichel> are yu trolling or are you considering this for real?
[16:08:11] <DJ9DJ> hihi
[16:08:19] <SolarNRG> I am
[16:08:23] <SolarNRG> I am poor
[16:08:30] <SolarNRG> I want to make something
[16:08:36] <Loetmichel> hmmm
[16:08:58] <jdhnc> make a cheap 3d printer
[16:09:00] <Loetmichel> if you are poor: THINK a lot, TEN buy the neccessary parts
[16:09:02] <jdhnc> doesn't need to be rigid
[16:09:21] <Loetmichel> anything other will be more expensive and or less effective
[16:11:52] <SolarNRG> I don't even know where you get metal plate from
[16:12:02] <SolarNRG> Is it something else you must buy off the internet from?
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[16:18:07] <skunkworks> SolarNRG: have you looked at cnczone.com? there are a lot of people building cnc machines. Lots of ideas
[16:18:09] <ssi> I think you might be a touch over your head :P
[16:20:23] <SolarNRG> Thanks
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[16:23:10] <Loetmichel> end of work, going home
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[16:45:52] <frysteev_> http://toronto.kijiji.ca/c-buy-and-sell-business-industrial-26-Servo-Motors-A06B-0153-B175-A06B-0157-B075-W0QQAdIdZ351179090
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[16:46:33] <ssi> wow
[16:46:35] <ssi> any idea how much?
[16:51:40] <Loetmichel> re @ home
[16:54:02] <frysteev_> 2nope just saw it online
[16:54:11] <pcw> You need a pretty big machine to require that large a Servo
[16:54:33] <ssi> once you have the servo
[16:54:35] <ssi> the big machine will follow
[16:54:35] <ssi> :D
[16:55:41] <ssi> pcw: so I have the rmsvss firmware loaded in my 5i23... if I don't need the smartserial stuff, I can use that port for gpio, yeah?
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[16:57:10] <pcw> Yes but you need a sserial_port_0=XXXXXXXX in your config line
[16:57:11] <pcw> so the driver/sserial firmware dont warble the I/O bits at startup
[16:57:19] <ssi> oh I see
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[17:01:02] <pcw> The default for unspecified HM2 hardware is "turn it all on"
[17:01:03] <pcw> so you need to specifically disable it.
[17:01:05] <pcw> The sserial stuff will be disabled eventually if the device probe doesn't find anything
[17:01:06] <pcw> connected but not until its enabled the TXD lines and sent some characters
[17:01:39] <ssi> gotcha
[17:02:07] <ssi> well dmesg is showing that it seems to be wiring P2 for the 7i49 correctly, and I have the pins and parameters for the resolvers
[17:02:11] <ssi> so that's encouraging :)
[17:02:32] <ssi> I made a lathe config off the sample and changed the encoder pins out for resolver ones
[17:02:40] <ssi> the resolvers don't seem to have any parameters like the encoders do
[17:03:01] <pcw> a simple rmsv6 bitfile would be better. Ill make one when I get a chance
[17:03:23] <pcw> They have the normal scale parameter
[17:04:11] <pcw> you can also set the excitation frequency (to a few different values)
[17:05:07] <pcw> the excitation drive level is also settable but the Hostmot2 driver cant do this yet
[17:05:39] <pcw> eventually I will set this automatically at statup
[17:06:04] <ssi> that's the 1:1/2:1 thing the manual mentions?
[17:06:43] <pcw> thats if you have different ratio resolvers.
[17:06:59] <ssi> gotcha
[17:08:19] <pcw> but the overall exitation drive level is settable in software so eventually I will have is scale the output so the input with the largest signal doesn't clip
[17:08:50] <ssi> ahh ok
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[17:09:16] <pcw> s /have is/have the firmware/
[17:09:41] <ssi> so right now there's only a parameter for the overall excitation frequency in the hal driver
[17:09:50] <ssi> so how do you set the drive level in firmware?
[17:09:55] <ssi> via config param?
[17:10:17] <ssi> (sorry for the dumb questions, I'm somewhat hal green, but I'm coming up to speed)
[17:10:29] <skunkworks> http://electronicsam.com/images/KandT/DSC_0242.JPG
[17:10:42] <pcw> well and the per channel scaling parameters
[17:10:44] <pcw> (theres no access to drive level via HAL currently)
[17:10:55] <frysteev_> http://toronto.kijiji.ca/c-buy-and-sell-tools-power-tools-VFDs-AC-drives-DC-drives-W0QQAdIdZ347656173
[17:11:05] <ssi> just have to rebuild a bitfile to change it?
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[17:11:38] <pcw> Well if your resolvers are standard 2-1 you should not have to do anything
[17:11:47] <ssi> I'm hoping for that :)
[17:12:08] <ssi> I guess I'm reasonably close to being able to try to hook up the resolvers and see what I can get
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[17:13:52] <pcw> If you look at the 7I49 manual you will see that ideally the inputs should be 1VRMS
[17:13:54] <pcw> (note that you have to rotate the shaft to get the maximum reading)
[17:14:53] <pcw> also a scope is better than a voltmeter for this as often cheap voltmeters are wonky at 10 KHz
[17:15:13] <ssi> no problem, I have a scope
[17:15:59] <pcw> 1V RMS is ~2.8V P-P
[17:16:16] <ssi> yeah :)
[17:16:42] <pcw> good to put a scope on just to get a feel how the resolvers work
[17:16:50] <ssi> yeah I'm looking forward to that actually
[17:17:03] <ssi> I have a vague notion of how they work, but it'll be nice to have the visual and tactile feedback :D
[17:18:09] <alex4nder> hey
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[17:22:06] <frysteev_> ssi: you need two channels on your scope to really try and understand the resolvers,
[17:22:15] <frysteev_> one channel on the reference, and another on the output
[17:22:31] <ssi> three channels :)
[17:22:46] <ssi> but I have a four channel scope, so I'll be ok ;)
[17:23:20] <ssi> my biggest challenge is gonna be laying hands on three probes
[17:24:35] <pcw> Its all pretty low voltage/low freq/low impedance so you can connect directly to scope inputs
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[17:35:10] <Loetmichel> IIRC resolver are working with a fixed sending coil and 2 90° rotated reciving coils, so you get 2 90° phase shifted signals , shifting 0-360 in respect to the sender signal with a full rotation
[17:35:14] <Loetmichel> am i right?
[17:35:27] <ssi> yeah
[17:35:40] <ssi> and I think the idea is similar to the idea of quadrature
[17:35:46] <Loetmichel> (yeah, remebered something correctly) ;-)
[17:35:53] <ssi> in that by having 90 degree out of phase signal, you can tell velocity and direction
[17:35:54] <awallin> I think you can get many electrical revs per one mechanical rev
[17:36:07] <ssi> and I guess since it's analog instead of digital, you can tell absolute position on a stationary shaft
[17:36:11] <ssi> or something like that :)
[17:36:30] <frysteev_> becuase its analog, it has infinate resolution,
[17:36:43] <frysteev_> the resolution is defined by the digital sampling
[17:37:01] <pcw> a sine output encoder (like an Heidenhaine linear) is basically the same except it used DC excitation
[17:37:42] <Loetmichel> [insert rage guy freddy mercury "yeah" pose here ]
[17:37:43] <Loetmichel> ;-)
[17:37:43] <ssi> frysteev_: well I'm thinking that when it's stationary, you can get an idea of where in the rotation it is by the sin/cos values
[17:38:03] <frysteev_> i believe so too
[17:38:04] <ssi> frysteev_: whereas with an encoder, it has to be turning
[17:38:13] <ssi> or rather, you have to keep state of where it's been to know where it is now
[17:38:26] <pcw> most common is one or 2 cycles per rev
[17:38:46] <frysteev_> when i first learened i had resolvers i was like wtf, what is this old junk but the i researched them and think they are nifty
[17:38:51] <pcw> but i have one here thats about 50 cycles (from a robot arm)
[17:38:52] <Loetmichel> ssi: there ARE absolute digital encoders
[17:38:56] <Loetmichel> bur expensive
[17:39:00] <Loetmichel> but
[17:39:31] <ssi> yea the resolvers are pretty intriguing
[17:39:49] <ssi> also this hardinge machine claims to be able to do 0.000020" precision, and I wonder if the resolvers don't have a lot to do with that
[17:40:01] <Loetmichel> frysteev_: therte are even converters on the market that can do a resolver-> qaudrature conversion
[17:40:29] <frysteev_> there is an arduino project that does it too
[17:40:41] <Loetmichel> on some older Siemens ac servo drives there were outputs configurable up to 4000 lines per rev
[17:41:00] <Loetmichel> i had my hands on
[17:41:03] <pcw> yep older absolute digital encoders use grey code wheels newer ones like Resolute encoders
[17:41:05] <pcw> have a special laser etched linear pattern and a linear sensor array
[17:41:14] <frysteev_> my theory is that as the machine gets bigger, and more likely able to rip off body parts, i wont use random hacks on it.
[17:41:30] <ssi> frysteev_: that's a pretty good way of going about it :)
[17:41:34] <Loetmichel> frysteev_: wise decision ;-)
[17:42:12] <Loetmichel> but even my small machin had made a nice clen 3mm hol through my thumb
[17:42:12] <frysteev_> like i COULD make a motor contactor using string and some sort of rube goldbeg contraption...
[17:42:45] <Loetmichel> in through the center of the nail, through the bone, out...
[17:42:45] <ssi> I tarded out pretty good yesterday
[17:42:48] <frysteev_> my small machine is in a cabinet, my big machine takes up half my shop
[17:43:00] <ssi> I got my coolant vfd installed, filled the machine with oil, and tried to run the coolant pump
[17:43:06] <Loetmichel> 3mm 2 flute Tungsten carbide mill bit at 24kRPM
[17:43:10] <ssi> and the vfd would only come up to 38hz and the motor was getting hot
[17:43:30] <ssi> so I drained the oil, removed the coolant pump, disassembled the pump and tried to run the motor
[17:43:37] <ssi> shaft spun freely, but it wouldn't spin up on its own
[17:43:44] <ssi> if you gave it a nudge as it was coming up, it would spin up
[17:43:49] <ssi> so I figured it had an open phase
[17:43:50] <Loetmichel> ssi: missed one phase?
[17:43:57] <ssi> measured the phases on the motor, and they measured fine
[17:44:10] <ssi> that's when I realized one phase line coming off the vfd wasn't seated in the terminal :(
[17:44:20] <ssi> made a bunch of work and a LOT of mess for no good reason :(
[17:44:23] <Loetmichel> hrhr
[17:44:30] <Loetmichel> happens
[17:44:34] <Loetmichel> to me too
[17:44:41] <ssi> but the good news is
[17:44:46] <ssi> I have a working coolant system
[17:44:53] <frysteev_> you are all oiled up for the weekend?
[17:44:58] <ssi> and it's filled with 10gal mobilmet 766
[17:45:13] <Loetmichel> hmm, i am just listhening to my Linuxcnc-computer spinning its fans up
[17:45:46] <Loetmichel> i THINK i have to redesing the airflow there... little bit to less space in the cabinet i think
[17:47:20] <frysteev_> i have an electrostic dust collector on my big machine, i need to learn more about it.. or learn to read german
[17:49:04] <Loetmichel> german manual?
[17:49:28] <frysteev_> my laser, robot arm and welder are all german,
[17:49:41] <frysteev_> everything is funny to read,
[17:50:22] <frysteev_> i have the important stuff translated so far,
[17:56:14] <Loetmichel> hrhr
[17:56:26] <Loetmichel> gernman isnt THAT hard to learn
[17:56:38] <Loetmichel> to read anyway
[17:57:27] <Loetmichel> if you have to talk freely you will have some problems with the grammar, though
[17:57:28] <frysteev_> try learning it while you are under the machine with a flashlight and a multimeter :P
[17:57:28] <Loetmichel> ;-)
[17:58:01] <Loetmichel> been there, done that... with simplified chinese ;-)
[17:58:06] <Loetmichel> (manual VFD)
[17:58:31] <Loetmichel> end of story: got a camera translator for my smartphone ;-)
[17:59:33] <Loetmichel> which can read words and whole sentences and translate them, so i know (more or less) waht to expect for the parameters.
[18:01:43] <Loetmichel> but something like " circle middle force top brake" is a little hard to interpret ;-)
[18:03:05] <Loetmichel> (it meant rectified DC maximum voltage which trips the "dc OVERVOLT" in display)
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[18:07:00] <frysteev_> anyone do any machine vision stuff with emc?
[18:09:49] <jdhnc> I had a webcam image embedded in axis for a while.
[18:10:10] <frysteev_> jdhnc: effect performance?
[18:10:18] <jdhnc> no
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[18:11:34] <frysteev_> i know thats one of those cheesy feature that mach3 has..
[18:11:42] <IchGuckLive> hi all around the world
[18:11:51] <jdhnc> it's not cheesy, it could be very useful.
[18:12:05] <jdhnc> just because it is mach, doesn't mean it is bad.
[18:12:27] <jdhnc> the mach wizards and stuff look very easy to use.
[18:12:52] <frysteev_> i have no real hate at mach3, just windows :P
[18:13:05] <ssi> hehe yeah, same here
[18:13:09] <ssi> I actually own a copy of mach3
[18:13:14] <ssi> my plasma table runs mach3 currently
[18:13:22] <ssi> but windows is such a pain in the ass
[18:13:53] <frysteev_> ive been curious to play with autodesk 123d sice it apparently has support to export gcode
[18:14:05] <jdhnc> I might use mach 3, if it weren't for windows, the price of mach, and the lack of performance.
[18:14:27] <jdhnc> no, I nmap'ed it and showed you that all the ports were accessible
[18:14:33] <jdhnc> <urk>
[18:17:27] <IchGuckLive> frysteev_: did you check heekscad ?
[18:18:09] <IchGuckLive> frysteev_: check out my intro video to get a gcode from a part just sketched out -> http://www.youtube.com/watch?v=DAVkVawm6pM
[18:19:43] <frysteev_> for me i used autocad, for all my 2d work, i need to get my cam worksflow setup for that,
[18:20:17] <frysteev_> for simple 3d stuff, i use sketchup, but 123d has some build in cool features like taking a 3d shape and making it ito 2d profiles.
[18:22:48] <IchGuckLive> for me i GO open or Go home !
[18:23:44] <ssi> I'd like to try heekscad, but I can't get it to build on osx
[18:24:11] <IchGuckLive> why osx linuxcnc is running on ubuntu fine
[18:24:26] <ssi> because I don't tend to like to do my cam work on my machine control computer
[18:24:44] <IchGuckLive> ok ssi
[18:25:20] <IchGuckLive> ssi you checked http://code.google.com/p/heekscad/wiki/CompilingForMacOSX
[18:25:44] <ssi> yeah, I've been through it
[18:25:50] <ssi> I think the opencascade stuff refused to build
[18:25:51] <ssi> I forget now
[18:25:55] <ssi> I'd have to try it all again
[18:26:11] <IchGuckLive> witch X are you on
[18:26:15] <ssi> 10.7
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[18:28:05] <IchGuckLive> im not familyar with mac i never got one today the new apple thing wars released in germany i have seen 1000+ people at the store side
[18:28:59] <Thetawaves> ssi, i've got a mac, so i'll be doing an effort to get heekscad on osx, 10.6 though...
[18:29:06] <ssi> Thetawaves: get on it!
[18:29:10] <ssi> I'm trying again, on my home imac this time
[18:29:14] <ssi> was working on my work laptop before
[18:29:53] <IchGuckLive> Thetawaves: do 'fink selfupdate-cvs' befor the way to get the correct source
[18:31:00] <frysteev_> what file formats does heekscad support?
[18:31:20] <IchGuckLive> the new 0.20 12
[18:31:38] <Thetawaves> i don't use fink.
[18:31:44] <Thetawaves> macports > fink
[18:31:53] <ssi> Thetawaves: can you do heeks with ports?
[18:31:58] <ssi> cause I much prefer ports as well
[18:32:15] <Thetawaves> i don't see why not, the packages needed to be installed by fink exist on mac ports
[18:32:46] * Thetawaves building wxgtk right now
[18:32:58] <IchGuckLive> frysteev_: do you need a spacel sutch as Rhino
[18:33:39] <IchGuckLive> standards 2D 3D are all in know
[18:33:53] <frysteev_> thats un vague
[18:35:51] <Thetawaves> i have to fill out a fucking registration form to use opencascade?
[18:35:54] <Thetawaves> what the shit is this
[18:36:10] <IchGuckLive> virus !
[18:36:13] <elmo40> because google needs your info
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[18:37:08] <IchGuckLive> elmo40: virus-> google as i said O.o
[18:39:09] <ssi> Thetawaves: oh yea, that might have been what hung me up
[18:39:12] <ssi> it's got "open" right in the name
[18:39:19] <ssi> now please give us your name and address and phone number
[18:40:40] <Thetawaves> ssi, well i signed up anyways
[18:40:46] <Thetawaves> now i've got the source if you want it
[18:41:47] <frysteev_> OPENupandgiveusyouccnumber.com
[18:42:44] <IchGuckLive> i woudt never go for this on a free software it maight be a trap or fake
[18:43:20] <frysteev_> so is the idea that its free software with gcode support?
[18:43:32] <frysteev_> and if so does it let you tailer the gcode to suit your application?
[18:43:52] <ssi> Thetawaves: hehe cool, lemme know how building it goes
[18:44:00] <ssi> I'm working on wxgtk
[18:48:21] <IchGuckLive> im off By
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[18:48:32] <Thetawaves> i finally got the damn 210meg download finished
[18:49:40] <frysteev_> is there any remote monitoring apps for emc?
[18:50:00] <frysteev_> like a web app that displays status or such?
[18:54:57] <frysteev_> be nice for those long jobs, when im in the office, and DONT wanna have to VNC to the computer.
[18:56:23] <Thetawaves> do you know how to write simple programs?
[18:57:38] <frysteev_> no, i am not a coder, i have attempted, but i always get hung up on syntax
[18:58:05] <Thetawaves> maybe get linuxcnc to update a file based on 'progress' .. serve that file over http
[18:58:15] <frysteev_> im actually really surp[rised there isnt a webgui already made
[18:58:30] <Thetawaves> there maybe, i'm sort of a newcomer
[18:58:55] <cradek> what's wrong with vnc (remote desktop) other than you "DONT wanna" use it?
[18:59:21] <frysteev_> dont wanna use it ie, cuz it has effect on system poerformance
[18:59:23] <Thetawaves> it's kinda resource intensive
[18:59:28] <frysteev_> i have nothing agsint it.
[19:00:15] <frysteev_> but if im doing a long job, be nice to just check in on it rmeotely, see if it errors or hangs,
[19:03:53] <frysteev_> or am i out in left field?
[19:04:05] <ssi> Thetawaves: downloading opencascade now... is yours building?
[19:04:25] <ssi> frysteev_: a remote console could be kinda handy
[19:04:26] <Thetawaves> ssi, i'm trying to install the required packages
[19:04:29] <ssi> even if it's just read-only
[19:04:30] <Thetawaves> tclx is failing to build
[19:04:46] <ssi> rgh
[19:04:48] <Thetawaves> on macports, there has been a ticket open for 3 years
[19:04:54] <Thetawaves> :O
[19:05:39] <Thetawaves> https://trac.macports.org/ticket/20641
[19:06:30] <ssi> I wish someone would write a nice native cocoa CAD/CAM :(
[19:06:55] <alex4nder> ssi: the users would be you, and the developer.
[19:07:07] <Thetawaves> lies, and damned lies
[19:07:15] <alex4nder> ssi: well, and me.
[19:07:15] <ssi> in the set of people that include everyone speaking in this channel right now, you're correct
[19:07:20] <Thetawaves> and me!
[19:07:49] <alex4nder> but I mean, Mac engineering apps don't tend to work out, unless the Mac version is a freebie because you used Qt and need to work on Linux
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[19:08:13] <Thetawaves> there are a couple mac-only engineering apps
[19:08:16] <ssi> I don't understand that mentality
[19:08:19] <ssi> engineers are smart people
[19:08:20] <Thetawaves> that are supposedly very good
[19:08:25] <ssi> smart people realize windows is a pile of shit
[19:08:43] <alex4nder> most engineers don't use computers
[19:08:44] <ssi> engineers are also people with jobs and money, not basement dwellers that can't afford things
[19:08:56] <ssi> alex4nder: hah based on what?
[19:08:56] <alex4nder> watching an EE use a computer is like watching a secretary use a wordprocessor.
[19:09:09] <alex4nder> it's not a computer, it's an application
[19:09:13] <alex4nder> they press the buttons, things come out.
[19:09:23] <ssi> that's a pretty gross generalization
[19:09:23] <alex4nder> most MEs I've met are the same way
[19:09:35] <alex4nder> ssi: well, the market for applications agrees with me.
[19:09:53] <ssi> correlation does not imply causation :)
[19:09:53] <alex4nder> how many good CAD, CAM, schematic capture, board layout, tools exist for the Mac or Linux for that matter
[19:10:10] <alex4nder> answer: none
[19:10:19] <ssi> how many large packages have been ported and given a chance?
[19:10:36] <ssi> answer to both your question and mine: a couple
[19:10:39] <ssi> autocad exists for osx
[19:10:44] <ssi> as does NX I think
[19:10:48] <Thetawaves> autocad on mac fucking blows
[19:10:49] <Thetawaves> hard
[19:10:53] <alex4nder> ssi: all of the historically significant engineering packages worked on UNIX workstations before Windows
[19:10:59] <ssi> I think autocad in general blows
[19:11:01] <alex4nder> and the market went away
[19:11:17] <ssi> I like solidworks a lot; if there were a solidworks osx port, I'd be thrilled
[19:11:29] <ssi> that said, I haven't been able to make any reasonable progress with any of the solidworks add-in cam suiites
[19:12:01] <ssi> I don't know why, but lathe cam seems to be just massively complicated
[19:12:09] <Thetawaves> ...who can afford solid works?
[19:12:24] <alex4nder> not me.
[19:12:25] <ssi> nobody can
[19:12:38] <ssi> I bought a student copy a few years ago :P
[19:12:52] <syyl_ws> are you still a student? ;)
[19:12:56] <ssi> sure!
[19:13:00] <ssi> I'm taking the MITx course
[19:13:03] <alex4nder> we're always learning. ;)
[19:13:06] <syyl_ws> good answer ;)
[19:13:42] <ssi> heheh
[19:13:51] <ssi> anyway, the solidworks model appeals to me more than the autocad model
[19:13:55] <alex4nder> yah
[19:14:03] <alex4nder> the only thing I really care about is a good CAM package for Linux
[19:14:04] <ssi> because I'm not a formally trained draftsman
[19:14:11] <alex4nder> my CADing is covered by sketchup
[19:14:18] <alex4nder> as much as it sucks
[19:14:35] <ssi> side note
[19:14:38] <ssi> opencascade sucks
[19:14:46] <ssi> they don't even have the brains to give their tarball a root dir
[19:14:51] <alex4nder> haha
[19:15:02] <alex4nder> what's wrong with the actual engine though?
[19:15:07] <ssi> I don't know yet
[19:15:09] <alex4nder> haha
[19:15:10] <ssi> all I know is
[19:15:22] <ssi> it has "open" in the name, but you have to give them your name, address, and phone number to download it
[19:15:27] <ssi> and they don't know how tarballs work
[19:15:31] <ssi> so I don't have high expectations :)
[19:15:52] <alex4nder> yah, bad start
[19:16:18] <ssi> also the build instructions start with "patch the makefile"
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[19:16:40] <alex4nder> what's the license like?
[19:16:43] <Thetawaves> if you try to build opencascade it lists a bunch of tcl stuff that it needs before you get started
[19:16:48] <Thetawaves> i'm stuck
[19:17:02] <Thetawaves> i'm not about to spend the next 3 days fixing tclx
[19:17:09] <ssi> Thetawaves: yea so it's not just me :)
[19:17:14] <ssi> so there goes heeks
[19:17:22] <ssi> so we're back to square one
[19:17:26] <Thetawaves> FFFUUUU
[19:17:26] <ssi> Thetawaves: are you a coder?
[19:17:33] <Thetawaves> yeah
[19:17:43] <ssi> Thetawaves: so let's write a simple OSX cam :D
[19:17:49] <ssi> start easy and work up!
[19:17:54] <Thetawaves> i've been working on pycam
[19:18:12] <ssi> I haven't looked at pycam
[19:18:19] <ssi> is it your project? or are you just contributing
[19:18:22] <frysteev_> Thetawaves: after you write a web gui for emc :P j/k
[19:18:47] <Thetawaves> not my project
[19:19:08] <Thetawaves> it was painfully slow with my models, so i made some speed improvements
[19:19:39] <ssi> all I want is something where I can draw a 2d profile and generate some lathe toolpaths from it
[19:19:45] <ssi> that'd be a good start as far as I'm concerned
[19:19:57] <ssi> if I could import a drawing from some other package and then generate toolpaths from that, I'd be even happier
[19:20:14] <Thetawaves> sounds like you are sol man
[19:20:18] <frysteev_> there has got to be easy lathe cam packages
[19:20:19] <ssi> no, I just need to write it
[19:20:23] <alex4nder> yha
[19:20:23] <Thetawaves> pycam is mostly for 3 axis mill
[19:20:27] <ssi> as if I don't have enough damn projects on my plate
[19:20:32] <alex4nder> pycam is like watching paint dry
[19:20:33] <ssi> yeah ALL cam is for 3 axis mill
[19:20:37] <ssi> there's no decent lathe cam out there
[19:20:49] <ssi> I went through this whole cycle awhile back
[19:20:51] <Thetawaves> do you like python? it is slow as a snail with opengl but quite fast to develop with
[19:21:05] <ssi> and the conclusion we all came to was that it's because most commercial lathes have good profiling cycles
[19:21:14] <ssi> I haven't done any python stuff
[19:21:26] <ssi> I've done a bit of ruby, but my primary body of experience is java and cocoa/objc
[19:21:39] <frysteev_> well the firsts tep is coming up with a good name for it..
[19:21:44] <Thetawaves> lol
[19:21:45] <alex4nder> a lathe CAM tool based on a starting path would be easy to write
[19:21:53] <ssi> ssi's lathe cam for osx that doesnt blow dicks
[19:21:54] <ssi> .com
[19:21:55] <frysteev_> openscad, sounds too much like openscab or openscat
[19:22:06] <alex4nder> you could do constant tool path load pretty easily
[19:22:24] <alex4nder> and come up with a nice peel pattern
[19:22:30] <ssi> alex4nder: hell I don't even care how fancy the toolpath generation is
[19:22:35] <ssi> I'd be happy with raster rough and finish profiling
[19:22:46] <ssi> I've been doing all my lathe work conversationally
[19:22:49] <ssi> and it's getting old :)
[19:22:56] <alex4nder> I just hate watching my tools do raster when they don't need to
[19:23:01] <alex4nder> it's like watching your child walk into a wall
[19:23:04] <alex4nder> again.. and again
[19:23:04] <ssi> heheh
[19:23:10] <frysteev_> ssi: you could use standard cam software, just rotate your drawing
[19:23:23] <ssi> alex4nder: great you're on the team
[19:23:26] <ssi> TEAM OSX CAM!
[19:23:30] <ssi> huhuhuh
[19:23:37] <Thetawaves> now you guys need some coders
[19:23:45] <ssi> sounds like we've got three already
[19:23:51] <alex4nder> programming is not the problem... it's time
[19:23:53] <ssi> yep
[19:24:04] <Thetawaves> programming is not the problem ... its the math
[19:24:09] <alex4nder> the math is done
[19:24:12] <frysteev_> your lathe profile would just be like z and x in your cam software
[19:24:13] <ssi> math is alex4nder's problem
[19:24:26] <alex4nder> the basics are easy.. teh hard parts can be solved later
[19:24:44] <frysteev_> essentially milling a 2d shape in a straight line
[19:24:53] <Thetawaves> i could team up with somebody really sharp on the 3 dimensional stuff, and together we could .. rule the world
[19:25:23] <alex4nder> have you guys looked at the stuff the freesteel guys do?
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[19:25:28] <ssi> no?
[19:25:35] <alex4nder> http://www.freesteel.co.uk/wpblog/frontpage/
[19:25:43] <alex4nder> they're looking to get their code into an opensource CAM package
[19:26:27] <ssi> that's way beyond me :)
[19:26:40] <alex4nder> that's the type of thing I've started doing with my taig
[19:26:48] <alex4nder> where HSM for the taig means 30 IPM. ;)
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[19:28:41] <Tugge> Is there some way to remove backslash by software? I measured it with dial gauge and it was around 0,08 mm.
[19:28:51] <ssi> backlash compensation
[19:29:06] <Tugge> Where I can find it?
[19:29:24] <Tugge> Im using linuxemc ubuntu 8 version
[19:29:48] <ssi> should be in your ini file
[19:29:50] <Tugge> Or do I need to modify some text file manually?
[19:30:19] <Tugge> Okay. I didn't check from there. Thanks :)
[19:30:34] <ssi> http://www.linuxcnc.org/docview/html//config_ini_config.htmlhttp://www.linuxcnc.org/docview/html//config_ini_config.html
[19:30:37] <ssi> er
[19:30:39] <ssi> look in section 2.2.9
[19:30:41] <ssi> http://www.linuxcnc.org/docview/html//config_ini_config.html
[19:30:51] <ssi> BACKLASH
[19:30:52] <ssi> = 0.000 Backlash in machine units.
[19:33:19] <Thetawaves> alex4nder, i know a fair bit about pycam
[19:33:19] <frysteev_> oh also, follow up to my serial port question form the other day,
[19:33:41] <alex4nder> Thetawaves: oh yah?
[19:34:12] <Thetawaves> yeah i think it might be possible
[19:34:31] <frysteev_> one of my projects on the go, is to utilize an existing control panel&pendant, it has led readouts for the axis" and such, if i get the 232 protocol, can i interface it with emc?
[19:34:41] <alex4nder> I love watching my taig do HSM-like side milling.. but it sucks to program those paths manually
[19:36:11] <alex4nder> frysteev_: anything is possible.. is it possible easily.. that depends
[19:37:03] <frysteev_> i like emc, but im a sucker for reto old looking controller interfaces with lots of buttons and mpgs
[19:37:52] <Thetawaves> it would probably be more fun to gut the electronics and only reuse the panel components
[19:38:41] <frysteev_> but when the whole panel is already a unit, and talks rs232 to the old motion contorller.
[19:39:53] <cradek> an mpg on the other side of an rs232 link is gonna suck
[19:40:23] <ssi> cradek: I tore apart my GE550 control last night
[19:40:27] <frysteev_> im more concerned with all axis readouts and panel indicators
[19:40:29] <ssi> cradek: I feel really guilty about it :P
[19:40:30] <cradek> other than that, in theory, sure it's possible, you just write the interface as a userland hal module and probably hook it up to halui
[19:40:33] <cradek> ssi: :-/
[19:40:38] <frysteev_> how old is that ge?
[19:40:42] <ssi> 1978
[19:41:11] <frysteev_> wow, my robot contorl is circa 1985, and its horrible,
[19:41:22] <ssi> haha
[19:41:28] <ssi> yea the GE550 is double horrible
[19:41:33] <cradek> 78 and 85 are worlds apart - you've got CPU(s) in yours.
[19:41:47] <ssi> mine is all wire wrapped
[19:42:01] <cradek> yes hand-wired ttl
[19:42:01] <Thetawaves> that's how you know its good
[19:42:02] <ssi> I had to cut a lot of the wirewrap wire to disassemble it
[19:42:07] <ssi> so it'll never run again
[19:42:08] <ssi> heh
[19:42:19] <frysteev_> pics?
[19:42:21] <ssi> I would have felt a lot better about it if I could have just unplugged some connectors and removed rack units
[19:42:22] <alex4nder> nostalgia is a crutch.
[19:42:30] <Thetawaves> why though? what the hell are you going to put in that giant cabinet?
[19:42:32] <frysteev_> did it work or was it dead dead
[19:42:37] <ssi> it worked fine
[19:42:48] <cradek> you mean "as well as ever"
[19:42:57] <ssi> Thetawaves: the servo amps and 90v supply are in the cabinet
[19:43:07] <ssi> Thetawaves: might as well leave them be, plus I can use it to house the resto f the control
[19:43:10] <ssi> as well as a nice panel
[19:43:18] <Thetawaves> sweet
[19:43:27] <alex4nder> you can steampunk your CNC setup
[19:43:32] <cradek> heh I dumped mine to get the floor space
[19:43:35] <ssi> frysteev_: here's the back of the logic rack
[19:43:35] <ssi> http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/431058_808115768072_71107655_35459254_823586676_n.jpg
[19:43:36] <cradek> it's just too big
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[19:43:53] <ssi> cradek: I may end up doing the same eventually
[19:44:00] <frysteev_> in my robot arm, im keeping the servo drives but gutting the cpu,
[19:44:10] <ssi> back of the panel: http://sphotos.xx.fbcdn.net/hphotos-ash4/428021_807114963692_71107655_35455758_1526283375_n.jpg
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[19:44:15] <alex4nder> frysteev_: what's the arm for?
[19:44:17] <ssi> front of the panel: http://sphotos.xx.fbcdn.net/hphotos-ash4/421210_807148396692_71107655_35455822_1156121393_n.jpg
[19:44:29] <alex4nder> ssi: oh jesus
[19:44:33] <ssi> I'm going to reuse all the lighted switches
[19:44:39] <frysteev_> wow
[19:44:41] <alex4nder> fucking tubes
[19:44:48] <Thetawaves> what do you guys use as a mouse on those nice cnc control panels
[19:44:48] <ssi> they're nixie tube 7seg displays :)
[19:44:59] <alex4nder> you going to reuse them?
[19:45:01] <Thetawaves> a ball?
[19:45:04] <cradek> no they're not nixies, they're filament displays
[19:45:15] <cradek> ... which sucks because they burn out
[19:46:08] <cradek> Thetawaves: yes sometimes a mouse will get in there and make a nest in the wiring, but not usually
[19:46:57] <Thetawaves> lol you could set emc up to operate fully without the use of a mouse
[19:47:11] <cradek> (I think the "address" knob for MDI interaction is really kind of an ok interface)
[19:47:12] <ssi> cradek: oh are they
[19:47:27] <frysteev_> you have a nixie tube display?
[19:47:32] <cradek> ssi: didn't yours have some segments burned out?
[19:47:40] <frysteev_> please take pics of that, that is awesome
[19:47:41] <ssi> cradek: I don't think so
[19:47:41] <cradek> mine had quite a few gone
[19:47:48] <ssi> frysteev_: I can't run them now :P
[19:47:53] <cradek> someone must have had a stock to keep them replaced then!
[19:47:54] <ssi> frysteev_: and apparently no, they're not nixie :)
[19:48:05] <frysteev_> ah,
[19:48:36] <frysteev_> so i found these displays i would love to use on the cnc machine,
[19:48:46] <cradek> aha, numitron, took me a while to remember the name: http://www.decodesystems.com/numitron.html
[19:48:49] <ssi> so I have my firmware loaded in the 5i23, and this weekend I'll try to get them wired to resolvers
[19:48:53] <ssi> I'd love to have motion before the weekend's over
[19:49:11] <frysteev_> they have displays for 3 axis readoutm but it was meant to display the gun turrent informaiton for a tank
[19:49:16] <ssi> cradek: haha nice
[19:49:29] <cradek> ssi: keep all the special resolver wiring and don't cut it except at the end
[19:49:35] <ssi> cradek: I don't need to cut it at all
[19:49:41] <ssi> cradek: I'm going to reuse the plug blocks
[19:49:45] <cradek> ah sweet
[19:50:12] <ssi> oh nice those tubes run on 5v!
[19:50:17] <ssi> I may make a desk clock out of them afterall :)
[19:50:22] <ssi> not as cool as a nixie clock
[19:50:26] <ssi> but a good consolation prise
[19:51:29] <cradek> this reminds me of 20s-30s radios: http://zaphod95.tripod.com/clocks/numitron/index.html
[19:52:26] <frysteev_> what are those tubes?
[19:52:30] <cradek> numitrons
[19:52:48] <cradek> filament displays mux better than nixies - no flicker
[19:53:06] <cradek> but you have to use lots-o-diodes
[19:53:40] <frysteev_> this ge machine sounds like a beast
[19:53:53] <Tugge> Hell yeah.. Thanks ssi. Now I don't have backlash at all according to my dial gauge :P
[19:54:18] <ssi> Tugge: great :)
[19:54:29] <ssi> frysteev_: the control alone was 800lb
[19:54:32] <frysteev_> ge 550 right?
[19:54:35] <ssi> ya
[19:56:09] <frysteev_> http://www.google.ca/imgres?um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1920&bih=1040&tbm=isch&tbnid=IKTpDQVmeem0JM:&imgrefurl=http://www.digitek-asi.com/photo_gallery/older_cnc_controls/album/slides/ge%2520550.html&docid=0nrc46EAhQkrkM&itg=1&imgurl=http://www.digitek-asi.com/photo_gallery/older_cnc_controls/album/slides/ge%252520550.jpg&w=640&h=480&ei=sJpjT6y1IIX20gH3waCCCA&zoom=1&iact=rc&dur=266&sig=102540370909447622278&p
[19:56:18] <frysteev_> errr sorry
[19:56:22] <frysteev_> look like that?
[19:56:36] <ssi> that one's older than mine
[19:56:37] <frysteev_> http://www.digitek-asi.com/photo_gallery/older_cnc_controls/album/slides/ge%20550.html
[19:56:43] <ssi> well maybe not
[19:56:48] <ssi> I think the panels can vary by machine
[19:56:52] <frysteev_> that control panel is epic,
[19:57:12] <ssi> http://sphotos.xx.fbcdn.net/hphotos-ash4/421210_807148396692_71107655_35455822_1156121393_n.jpg
[19:57:15] <ssi> is mine
[19:57:57] <ssi> plus I have a u-stor memory unit over where the tape door would be
[19:58:14] <skunkworks> http://electronicsam.com/images/KandT/conversion/frntcontroller.JPG
[19:58:47] <ssi> :)
[19:58:54] <frysteev_> dude, you should so keep that with emc
[19:59:09] <skunkworks> already long gone.
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[20:12:53] <skunkworks> http://electronicsam.com/images/KandT/conversion/panel/startfront.JPG
[20:13:03] <skunkworks> I think I have added a feed hold...
[20:13:19] <skunkworks> I really need to finish that up but it has been working so why finish it ;)
[20:15:37] <ssi> haha classy
[20:18:38] <frysteev_> ssi: i hope you reuse that control poanel
[20:18:46] <ssi> I'm gonna, but I'm going to rearrange it
[20:18:54] <ssi> my plan is to harvest all the buttons and switches from it,
[20:19:04] <ssi> then cut out a big square, leaving a half inch border all the way around
[20:19:16] <ssi> then I'm gonna plasma cut a new panel that'll hold a monitor and the switches in some useful arrangement
[20:19:21] <ssi> and screw that overlay on
[20:19:27] <frysteev_> fancy
[20:19:28] <ssi> :D
[20:19:50] <frysteev_> i like the contorl panel on my laser, lots of buttons and keys
[20:19:54] <ssi> :)
[20:19:58] <frysteev_> very missle control like
[20:19:59] <ssi> I want to add an MPG to this panel too
[20:21:08] <frysteev_> this isnt mine, but it looks like this http://lazertek.org/images/spare/fnc5/8.jpg
[20:21:38] <ssi> see that's a NICE control
[20:21:39] <ssi> I'd rock that
[20:21:40] <ssi> :D
[20:22:06] <frysteev_> im planning on leaving that in place
[20:22:54] <frysteev_> as long as it works, 96x48 i/o plus servo and resolver i/o, i dont wanna have to transfer all that to emc
[20:23:00] <ssi> agreed
[20:23:39] <frysteev_> that am im broke..
[20:23:45] <ssi> I'm broke now!
[20:23:52] <ssi> I spent all mah bux on parts for this conversion :/
[20:24:21] <frysteev_> but you didit to get the women, i hear they really go for cnc machines
[20:24:27] <ssi> damn straight
[20:24:42] <ssi> nah that's why I bought my airplane :)
[20:25:03] * frysteev_ google "women of cnc calender"
[20:25:22] <ssi> I get nothin
[20:25:23] <ssi> heh
[20:26:20] <frysteev_> im out, ttyl
[20:26:38] <ssi> see ya
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[20:47:01] <Thetawaves> any freecad users around
[20:47:26] <Thetawaves> when i export a dxf containing a single square, i can only see 3 or 4 lines :-/
[20:48:45] <isssy> well.... freecad...
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[20:50:57] <Thetawaves> it might not be a problem with freecad, freecad properly reads dxf files generated by freecad
[20:51:07] <Thetawaves> it could be a problem in pycam :(
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[21:04:51] <SolarNRG> beddy byes for snoozy pies
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[21:08:09] <mikebronner> Hi guys, I know this isn't necessarily an EMC-specific question, but I figured that maybe some of you have come across this issue when building your CNC machines: I want to run flexible conduit (smurf-tubing) between the gantry and the table to organize my wires. The problem that I'm running into is that the tubing wants to twist/rotate as the gantry moves back and forth. I haven't been able to find any rotating couplings for PVC piping … any
[21:08:10] <mikebronner> thoughts?
[21:09:40] <jdhnc> how thick is your tubing? secure both ends and let it just flex in the middle? How many wires do you have in there?
[21:10:39] <ssi> smurf tube is probably way too heavy
[21:11:06] <ssi> two axes of cable chain is the best bet, but it's not cheap
[21:13:18] <jdhnc> it's not made to flex repeatedly either, I'd assume it would break
[21:13:22] <mikebronner> I'm using 3/4" tubing. I mocked it up and tried it, but the rotational stress is too great … the surf tubing is very inflexible when you twist, it only flexes around bends
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[21:13:33] <mikebronner> ** smurf-tubing
[21:14:11] <jdhnc> I used split loom tubing
[21:14:12] <mikebronner> I guess for now I'll just leave off flexible tubing and use electrical tape or twist ties in the exposed areas
[21:14:27] <mikebronner> i haven't heard of that …. googling now
[21:14:48] <mikebronner> ah, i see
[21:15:06] <jdhnc> I have some tubular nylon meshy stuff for the terminal strip back to the controller
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[21:16:57] <mikebronner> that's a good idea … some nylon hose type stuff that just wraps around the wiring and keeps it together.
[21:17:05] <ssi> something similar to split loom, but not actually split would be better than the smurf
[21:17:14] <ssi> I have some of it that came with my RV-7 kit for running wiring through the wings
[21:17:23] <ssi> it's like very very light gauge smurf tube
[21:17:33] <ssi> but I dunno where to get it :/
[21:17:42] <mikebronner> ssi, i'll look into that as well :)
[21:18:00] <mikebronner> hey, sorry i have to run, just got an emergency call from a customer … thanks so much for the ideas :)
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[21:53:10] <hammonja> Hi
[21:53:20] <hammonja> Any about ?
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[21:56:43] <mikebronner> hi, i'm in and out … just hanging out
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[21:56:49] <ssi> hahaha
[21:56:51] <alex4nder> hey
[21:57:13] <ssi> anyone on that's doing 6.002x?
[21:57:45] <alex4nder> I'm enrolled, but I suck at going to class.
[21:57:57] <ssi> shame
[21:58:21] <ssi> I'm hung up on one of the homework problems :/
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[22:01:59] <archivist> hammonja, plenty about but they need real questions to respond
[22:06:45] <DJ9DJ> gn8
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[22:07:42] <mikebronner> n8
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